Rotatable temperature sensing device

Patent metadata

Field	Value
Publication number	US-9631986-B2
Application number	US-201414258961-A
Country	US
Kind code	B2
Filing date	Apr 22, 2014
Priority date	May 10, 2013
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A rotatable temperature sensing device. In one example, a temperature sensing device includes a first end. The temperature sensing device also includes a second end. The temperature sensing device includes a shaft coupling the first end and the second end. The shaft is configured to rotate the first and second ends together during operation. The temperature sensing device also includes a temperature sensor disposed in the first end and configured to communicatively connect to an external device, wherein the temperature sensor is configured to provide an indication of a temperature of the workpiece.

First claim

The invention claimed is:

1. A temperature sensing device comprising:
a first end configured to contact a workpiece on an outer surface of the first end;
a second end configured to be mechanically coupled a stationary shaft;
a rotatable shaft coupling the first end and the second end, wherein the rotatable shaft is configured to rotate the first and second ends together during operation, and wherein an angle of the rotatable shaft relative to the stationary shaft is adjustable; and
a temperature sensor disposed in the first end and configured to communicatively connect to an external device, wherein the temperature sensor is configured to provide an indication of a temperature of the workpiece.

2. The temperature sensing device of claim 1 , wherein the first end comprises a conical shape having a cone angle of approximately 90 degrees.

3. The temperature sensing device of claim 1 , wherein the first end comprises a thermally conductive layer.

4. The temperature sensing device of claim 3 , wherein the temperature sensor is configured to detect a temperature of the thermally conductive layer.

5. The temperature sensing device of claim 3 , wherein the first end comprises a ceramic material having the thermally conductive layer.

6. The temperature sensing device of claim 1 , comprising a slip ring, wherein the slip ring mechanically couples the second end to the stationary shaft.

7. The temperature sensing device of claim 1 , wherein the second end comprises a rotatable electrically conductive contact comprising brushes, liquid metal, or some combination thereof.

8. The temperature sensing device of claim 1 , wherein the temperature sensor comprises a thermocouple, a bimetallic sensor, or a combination thereof.

9. The temperature sensing device of claim 1 , comprising the stationary shaft mechanically coupled to the second end, wherein the stationary shaft is communicatively coupled to the external device.

10. The temperature sensing device of claim 9 , comprising a slip ring, disposed on the stationary shaft.

11. The temperature sensing device of claim 9 , wherein the stationary shaft comprises one or more electrical contacts configured to contact a rotatable electrically conductive contact.

12. The temperature sensing device of claim 9 , comprising a second stationary shaft, wherein the stationary shaft extends at an adjustable angle relative to the second stationary shaft.

13. The temperature sensing device of claim 12 , wherein the external device comprises a power supply, and the power supply is configured to provide a visual indication, an audio indication, or a combination thereof, of the temperature of the workpiece.

14. The temperature sensing device of claim 1 , comprising a wireless transmitter disposed in a rotatable tip and configured to wirelessly transmit data from the temperature sensor.

15. A temperature sensing device comprising:
a rotatable tip formed from an insulating material, wherein the rotatable tip is configured to contact a workpiece;
a thermally conductive layer coupled to the insulating material;
a temperature sensor configured to detect a temperature of the thermally conductive layer, wherein the temperature sensor is configured to communicatively couple to an external device; and
a stationary shaft mechanically coupled to the rotatable tip via a slip ring, wherein the stationary shaft is electrically coupled to the temperature sensor, and wherein an angle of the rotatable tip relative to the stationary shaft is adjustable.

16. The temperature sensing device of claim 15 , wherein the rotatable tip comprises a conical shape.

Assignees

• Illinois Tool Works

Inventors

• Verhagen Paul David
• Luo Jyi-Jiin
• Dill Michael C

Classifications

• G01K1/143

  for measuring surface temperatures · CPC title

• G01K13/08 Primary

  in rotary movement · CPC title